Bismuth-based ternary heterojunction prepared by acetate-glycol recyclable system for excellent glyphosate degradation

Glyphosate herbicide is commonly used to kill weeds in crops because of its high efficiency and low cost. However, excessive use of glyphosate not only leads to soil, surface water, and groundwater pollution, but also presents a potential risk to human health. Photocatalysis as an advanced oxidation technology can efficiently and environmentally degrade glyphosate, and bismuth-based photocatalysts have garnered extensive attention for their strong photo-oxidation capabilities. In this work, a green reaction route was developed to synthesize Bi-based/g-C 3 N 4 /CdS ternary heterojunction photocatalysts for glyphosate removal, by combining acetic acid-glycol synergistic systems with atmospheric pressure microwave methods. By regulating the structure and composition of the catalyst, excellent photodegradation and stabilization of glyphosate by BiOCl/g-C 3 N 4 /CdS (> 98% removal of glyphosate in 90 min). This study is of great significance for the green preparation and application of efficient photocatalysts for glyphosate removal, and the development of other recyclable systems.